Yari really does look like she is getting her game together now. As this season is going on she seems to slowly but surely be getting better and better. She has now won 5 out of her last eight matches and of the three she lost in 2 of them she was a set and a break up. The one other match was against Mauresmo where Yari staged a great 2nd set comeback only to just miss taking it to a 3rd set. So in other words Yari has been competitive in all eight matches. Yari might not win every match but she certainly won't give her opponent an easy win.
And best of all, Yari seems to have this knack to raise her game against the best opponents. That doesn't mean she always beats them but she rarely loses easily to a quality opponent and the way she is playing right now I am pretty confident Jankovic will have a tough match in the next round.